One of the best gadgets I have bought from DX. Powered by 3 x 18650 batteries, this power bank can fill my Iphone from dead to full almost 5 times ! It has a led that works as a (weak) flashlight and a button that show capacity available by flashing green / orange / red. Be sure to buy good that...One of the best gadgets I have bought from DX. Powered by 3 x 18650 batteries, this power bank can fill my Iphone from dead to full almost 5 times ! It has a led that works as a (weak) flashlight and a button that show capacity available by flashing green / orange / red. Be sure to buy good batteries. Forget that ones above 3000mA, they are fake. I use and recommend SKU 20392. I took the batteries out and charge in a separate charger, but it can be charged by the mini USB labeled "IN" (have never tried).Read more

Supplier had been fast to process and ship the order. Item arrived timely with no defects. Packaging was just like on photos provided on a product page i.e. transparent plastic blister with the device inside. This power bank is capable to work with one, two or three 18650 sized batteries and have...Supplier had been fast to process and ship the order. Item arrived timely with no defects. Packaging was just like on photos provided on a product page i.e. transparent plastic blister with the device inside. This power bank is capable to work with one, two or three 18650 sized batteries and have no problems charging my iPad 2, iPhone 4, iPhone 5s and a number of Android-based smartphones of various brands. Charging speed is not affected by the number of batteries - it remains the same no matter if you use one or three of them. The only thing changed with a batteries quantity is a power capacity - for the obvious reason. White part of the case is made of the glossy plastic which is slip and smooth to touch. Top part (with white LED, button and USB ports) is made of shaggy gray plastic which is rough to touch. This dissonance could be a problem for people who like "ideal design" approach. For me it is not a problem at all. Device is pretty tough to open up so you have to use significant amount of force. One should be careful not to crack the plastic in process. Battery holder is good in size - there would no be any problems with R19760 batteries fitting (a.k.a. protected 18650) which is extremely useful - it is not a good idea to use mobile power bank with unprotected cells. This power bank could be used as a poor's man LED light - pressing and holding the only button for about 3 seconds will activate the bright white LED located near the output USB port. Pressing and holding it again would switch the LED off. Brief click on a button would show the approximate remaining charge of the batteries (green/yellow/red). Power bank would auto-activate as soon as you attach something to charge. LEDs under the only button would cycle through green/yellow/red colors to signal that the charging process is in progress. I had not tested batteries charging capability of the power bank as I use external analyzing charger to handle my 18650 and R19670. On the other hand I would expect it to be an OK charger as the device feels to be a quality product. The only cons I see for this one is a slightly higher than the average price for this type of product but IMHO it is well rewarded by the great looks and big enough battery slots having no problems to fit in protected batteries.Read more

Build quality seems good for the price. Springs holding in batter seem a little weak, but more then good enough to hold battery against contacts. Top LED light by &quot;in&quot; charging port does not appear to do anything. Description claims that this can be used as a 18650 battery charger, but...Build quality seems good for the price. Springs holding in batter seem a little weak, but more then good enough to hold battery against contacts. Top LED light by &quot;in&quot; charging port does not appear to do anything. Description claims that this can be used as a 18650 battery charger, but opening the case is really hard. I wouldn't recommend it as it would wear out the pressure clamps Good product I would recommend this product for a USB charging device. Tested on Samsung S4 and an IPhone 5S Read more

It works.
It chagres my HTC Desire when screen is off and prevent it from discharging if screen is on and GPS used.
Charing of this device is fast.
Device has compact dimensions. I think that charging power is not really good.
but maybe it is because of not good charging cable
Price can be need...It works.
It chagres my HTC Desire when screen is off and prevent it from discharging if screen is on and GPS used.
Charing of this device is fast.
Device has compact dimensions. I think that charging power is not really good.
but maybe it is because of not good charging cable
Price can be lower
You need to buy two pac of batteries, because usually this batteries sold in pairs Light can be more bright, charging cable not included Good device but I'll keep searching for ideal charger cause this device is not perfect. Read more

Very comfortable and incredibly necessary in campaigns, trips and so on the device. Very helps out in places where there is no access to electricity. Fully charge the mobile device or any other device that can be charged via a USB interface. Shows the battery when charging and discharging the in...Very comfortable and incredibly necessary in campaigns, trips and so on the device. Very helps out in places where there is no access to electricity. Fully charge the mobile device or any other device that can be charged via a USB interface. Shows the battery when charging and discharging the battery during use. Comes in handy, and a flashlight. no cons. Easy stuff, always comes in handy.Can be used with 1 to 3 18650 Battery voltage of 3.7 volts. You will not regret it. Read more

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